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Journal of Applied Oral Science: Revista FOB

Daniela Hesse, Clarissa Calil Bonifácio, Cornelis Johannes Kleverlaan, Daniela Prócida Raggio
OBJECTIVE: High viscous glass ionomer cement (GIC) has gained popularity as a restorative material; however, high wear is pointed as one of the major drawbacks of this material. Protective surface coatings were developed to protect GIC from water contamination with the additional advantage of occluding any surface cracks or porosities commonly found in this material, possibly resulting in an increased wear resistance of the restorations. The objective of this study was to investigate the clinical wear of GIC approximal restorations in primary molars protected either with a nanofilled self-adhesive light-cured protective coating (NPC) or with petroleum jelly...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Luiz Renato Olchanheski, Regina Sordi, Junior Garcia Oliveira, Gustavo Ferreira Alves, Reila Taina Mendes, Fábio André Santos, Daniel Fernandes
OBJECTIVE: Periodontitis is associated with endothelial dysfunction, which is clinically characterized by a reduction in endothelium-dependent relaxation. However, we have previously shown that impairment in endothelium-dependent relaxation is transient. Therefore, we evaluated which mediators are involved in endothelium-dependent relaxation recovery. MATERIAL AND METHODS: Rats were subjected to ligature-induced experimental periodontitis. Twenty-one days after the procedure, the animals were prepared for blood pressure recording, and the responses to acetylcholine or sodium nitroprusside were obtained before and 30 minutes after injection of a nitric oxide synthase inhibitor (L-NAME), cyclooxygenase inhibitor (Indomethacin, SC-550 and NS- 398), or calcium-dependent potassium channel blockers (apamin plus TRAM- 34)...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Osmar Aparecido Cuoghi, Lorraine Perciliano de Faria, Edilson Ervolino, Sônia Regina Panzarini Barioni, Francielle Topolski, Victor Elias Arana-Chavez, Marcos Rogério de Mendonça
OBJECTIVE: The purpose of this study was to histologically evaluate pulp and dentin under induced tooth movement (ITM) with different types of forces. MATERIAL AND METHODS: The maxillary right first molars of rats were submitted to movement with continuous (CF), continuous interrupted (CIF) and intermittent (IF) forces during 5, 7 and 9 days with nickel-titanium (NiTi) closed-coil springs exerting 50cN force magnitude. The groups were histologically evaluated as for cellularity pattern, presence of dystrophic, hemodynamic alterations in the pulp as well dentin alterations...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Vanessa Cavalli, Denise Aparecida da Rosa, Daylana Pacheco da Silva, Matheus Kury, Priscila C S Liporoni, Luis Eduardo S Soares, Airton Abraão Martins
OBJECTIVE: High concentrations of hydrogen peroxide can cause adverse effects on composition and structure of teeth. However, the addition of calcium and fluoride in bleaching agents may reduce enamel demineralization. To evaluate chemical changes of sound and demineralized enamels submitted to high concentrations of hydrogen peroxide containing fluoride (F) or calcium (Ca). MATERIAL AND METHODS: Enamel blocks of bovine incisors with standard dimensions were obtained and half of them were submitted to pH-cycling to promote initial enamel caries lesions...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Yue Yang, Wenzhi Li, Benxiang Hou, Chen Zhang
OBJECTIVE: To investigate the relation between biofilm formation ability and quorum sensing gene LuxS/AI-2. MATERIALS AND METHODS: Enterococcus faecalis (E. faecalis) standard strain ATCC 29212 was used in the study. Long flanking homology polymerase chain reaction method was used to build the LuxS gene knockout strain. Sequential culture turbidity measurement and CFU counting were used to assess the proliferation ability of E. faecalis after the depletion of LuxS...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Ramón Franco-Topete, José Sergio Zepeda-Nuño, Ana Lourdes Zamora-Perez, Martha Graciela Fuentes-Lerma, Belinda Claudia Gómez-Meda, Celia Guerrero-Velázquez
OBJECTIVE: Chronic periodontitis (CP) is characterized by gingival inflammation and bone destruction. It has been reported that interferon-gamma (IFN-γ) levels are high in CP patients; however, the IFN-γ receptor (IFN-γR) has not been studied in gingival tissue from these patients. To evaluate IFN-γ levels and IFN-γR expression in gingival tissue biopsies from chronic periodontitis patients compared with healthy subjects (HS). MATERIAL AND METHODS: Gingival tissues were obtained from all study subjects, CP (n = 18) and healthy subjects (HS) (n = 12)...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Maycon Lázaro Pinheiro, Marília Yatabe, Marcos Ioshida, Luan Orlandi, Priscille de Dumast, Ivy Kiemle Trindade-Suedam
OBJECTIVE: The aim of this study was to assess the accuracy of volumetric reconstruction of the pharynx by comparing the volume and minimum crosssectional area (mCSA) determined with open-source applications (ITK-Snap, ; SlicerCMF) and commercial software (Dolphin3D, 11.8, Dolphin Imaging & Management Solutions, Chatsworth, CA, USA) previously validated in the literature. MATERIAL AND METHODS: The sample comprised of 35 cone-beam computed tomography (CBCT) scans of patients with unilateral cleft lip and palate, with mean age of 29±15...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
André Gustavo Paleari, Norberto Martins de Oliveira Junior, Danny Omar Mendoza Marin, Larissa Santana Rodriguez, João Neudenir Arioli Filho, Ana Carolina Pero, Marco Antonio Compagnoni
OBJECTIVE: There is a lack of clinical evidence on mandibular overdentures (MOD) supported by a single implant. To compare patient satisfaction and masticatory performance in MOD supported by one versus two implants in a two-group parallel randomized clinical trial. MATERIAL AND METHODS: Twenty-one patients wearing new maxillary and mandibular complete dentures (CDs) were randomly divided to receive one (GI, n = 11) or two (GII, n = 10) implants in the mandibular arch...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Fatma Ucan Yarkac, Ozge Gokturk, Osman Demir
OBJECTIVES: The purpose of this study was to determine the impact of nonsurgical periodontal therapy considering the salivary stress-related hormone and cytokine levels in the gingival crevicular fluid (GCF) on pregnant and nonpregnant women. MATERIAL AND METHODS: Thirty non-pregnant (control group) and 30 pregnant women (test group) that met the study inclusion criteria were chosen. Only participants with gingivitis were included. Clinical data and samples of GCF and saliva were collected at baseline and after periodontal therapy...
July 23, 2018: Journal of Applied Oral Science: Revista FOB
Marta Cholewa, Katarzyna Madziarska, Malgorzata Radwan-Oczko
OBJECTIVES: To analyze the association between periodontal conditions and inflammation, nutritional status and calcium-phosphate metabolism disorders in hemodialysis (HD) patients. MATERIAL AND METHODS: We analyzed 128 HD patients divided into two groups: dentate (n = 103) and edentulous (n=25). The following items were assessed: baseline characteristics, age at the start and duration of HD, biochemical data: C-reactive protein (CRP), serum albumin, calcium, phosphorus, alkaline phosphatase, parathormone...
July 23, 2018: Journal of Applied Oral Science: Revista FOB
Ana Paola Nicolielo-Carrilho, Patrícia Abreu Pinheiro Crenitte, Simone Aparecida Lopes-Herrera, Simone Rocha de Vasconcellos Hage
PURPOSE: Reading requires the activation of several cognitive processes, some of which are basic, e.g. recognizing letters and words, whereas others are complex, such as working memory and ability to think about one's own learning strategies. One condition for fulfilling a complex cognitive task, such as understanding a text, is the ability to maintain and process information, which depends on working memory. OBJECTIVE: To analyze the ability of using metacognitive strategies for reading, the phonological working memory of school children with learning disabilities, and also determine if there is relation between these skills and reading comprehension...
July 23, 2018: Journal of Applied Oral Science: Revista FOB
Osny Ferreira Júnior, Etiene Andrade Munhoz, Jéssica de Fátima Segantin, Eduardo Sanches Gonçales, Paulo Sérgio Perri de Carvalho
OBJECTIVE: It is necessary to preserve height and thickness of the alveolar bone to facilitate rehabilitation with osteointegratable implants or simply to maintain bone integrity after extraction. Biomaterials associated with resorbable or non-resorbable membranes, when placed in the region of the socket, may contribute to avoid this unwanted reabsorption. OBJECTIVE: The objective of this study was to evaluate the distance of the crest of alveolar ridge to the cementoenamel junction (CEJ) of the lower second molars and the bone density of the third molar socket filled with Gen-Tech®, 5 years after an exodontia using cone beam computed tomography (CBCT) to visualize the central region of the sockets, without overlapping of the buccal and lingual cortical bones...
July 16, 2018: Journal of Applied Oral Science: Revista FOB
Shelyn Akari Yamakami, Adriana Lemos Mori Ubaldini, Francielle Sato, Antonio Medina Neto, Renata Correa Pascotto, Mauro Luciano Baesso
OBJECTIVE: To investigate the chemical interactions between a high-viscosity glass ionomer cement (GIC) (KetacTM Molar Easymix, 3M ESPE, Seefeld, Bavaria, Germany) and human dentin. It was also analyzed the dynamics of GIC setting mechanism based on the time intervals required for the GIC and the GIC mixed with dentin to achieve stability. MATERIAL AND METHODS: Each constituent of GIC - powder (P) and liquid (L) - and powdered dentin (D), as well as the associations P+L, D+L, and P+L+D in the concentrations of 29%, 50%, 65%, 78%, 82%, and 92% of GIC were analyzed with Fourier transform infrared (FTIR) and Raman spectroscopy...
July 16, 2018: Journal of Applied Oral Science: Revista FOB
Mustafa Özay Uslu, Abubekir Eltas, İsmail Marakoğlu, Serkan Dündar, Kazım Şahin, İbrahim Hanifi Özercan
OBJECTIVE: In this study, we aimed to histologically and immunologically evaluate the effect of diode laser treatment when applied adjunctive to scaling and root planing (SRP) in an experimental periodontitis model. MATERIALS AND METHODS: We used Wistar-Albino rats (n=60) with average weight of 230 g. Experimental periodontitis was induced by ligature at the right and left first mandibular molar teeth in all rats. After 11 days, the ligature was removed and rats were divided into two groups...
July 16, 2018: Journal of Applied Oral Science: Revista FOB
Dionísia Aparecida Cusin Lamônica, Caroline Kauffman Becaro, Aline Cabral Borba, Luciana de Paula Maximino, Aline Roberta Aceituno da Costa, Camila da Costa Ribeiro
OBJECTIVE: The objective of this study was to evaluate and compare the performance of children in preschool age who were born premature and term, without neurological injury, regarding receptive and expressive language skills, and to reflect on the importance of these skills for performance in preschool. MATERIALS AND METHODS: Two groups named Preterm Group and Comparison Group, each composed by 40 children, as well as 80 legal representatives (mothers) and 80 teachers of the participants...
July 16, 2018: Journal of Applied Oral Science: Revista FOB
Hasan Ayberk Altug, Ufuk Tatli, Abdullah Tugrul Coskun, Özgür Erdogan, Aydın Özkan, Metin Sencimen, Mehmet Kürkçü
OBJECTIVE: To evaluate whether hyperbaric oxygen (HBO) treatment has a favorable effect on implant osseointegration in diabetic rabbits. MATERIAL AND METHODS: An experimental diabetes model was induced in 32 New Zealand rabbits through IV injection of alloxan. After the state of diabetes had been confirmed, one dental implant was placed in the metaphysical region of each animal's tibia. After the implants' placements, the animals were divided into two groups. Half of the animals underwent HBO treatment, while the other group did not receive HBO treatment and served as the control group...
July 10, 2018: Journal of Applied Oral Science: Revista FOB
Phuc Anh Nguyen, Thuy Anh Vu Pham
OBJECTIVE: This study evaluated the influence of platelet-rich plasma (PRP) on the behaviour of human gingival fibroblasts (hGFs), including fibroblast proliferation, migration and colony formation. METHODS: PRP was obtained from the human peripheral blood of a healthy volunteer and then was diluted into platelet concentrations of 1%, 2% and 5%. The proliferation of hGFs was determined by two methods: (1) Cell-number counting with a haemocytometer method at days 1, 3, 5 and 7; (2) Colony-forming unit-fibroblast (CFU-F) assay at 2 weeks...
July 10, 2018: Journal of Applied Oral Science: Revista FOB
(no author information available yet)
[This corrects the article doi: 10.1590/1678-7757-2017-0284].
July 10, 2018: Journal of Applied Oral Science: Revista FOB
Marcela Cristina Damião Andrucioli, Mírian Aiko Nakane Matsumoto, Maria Conceição Pereira Saraiva, Magda Feres, Luciene Cristina de Figueiredo, Carlos Artério Sorgi, Lucia Helena Faccioli, Raquel Assed Bezerra da Silva, Lea Assed Bezerra da Silva, Paulo Nelson-Filho
OBJECTIVES: Using two groups of mini-implants (successful and failed) the objectives of this in vivo study were: to evaluate the microbial contamination by the checkerboard DNA-DNA hybridization technique and to quantify the bacterial endotoxin by the limulus amebocyte lysate assay. MATERIAL AND METHODS: The 15 successful and 10 failed mini-implants (1.6 mm diameter × 7.0 or 9.0 mm long), placed in the maxilla and/or mandible, were obtained from 15 patients undergoing orthodontic treatment...
July 10, 2018: Journal of Applied Oral Science: Revista FOB
Driely Barreiros, Carolina Maschietto Pucinelli, Katharina Morant Holanda de Oliveira, Francisco Wanderley Garcia Paula-Silva, Paulo Nelson Filho, Lea Assed Bezerra da Silva, Erika Calvano Küchler, Raquel Assed Bezerra da Silva
OBJECTIVE: To evaluate and correlate, in the same research, the mRNA expression and the staining of RANK, RANKL, OPG, TLR2 and MyD88 by immunohistochemistry in the apical periodontitis (AP) progression in mice. MATERIAL AND METHODS: AP was induced in the lower first molars of thirty-five C57BL/6 mice. They were assigned to four groups according to their euthanasia periods (G0, G7, G21 and G42). The jaws were removed and subjected to histotechnical processing, immunohistochemistry and real-time reverse transcription-PCR (qRT-PCR)...
July 10, 2018: Journal of Applied Oral Science: Revista FOB
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